A control information output device assumes not only a destination but also a travel route based on accumulated travel route information. Moreover, after a travel is started, if it is found that an assumed travel route is incorrect, assumption of the destination and assumption of the travel route are performed again. Therefore, accuracy of the control information outputted to a driving force control unit is high, and accordingly, it is possible for the driving force control unit to perform control of charging/discharging with an improved energy utilization factor.